Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2014

Goodwill and Intangible Assets Disclosure [Abstract]

Changes in carrying amounts of goodwill

The changes in carrying amounts of goodwill during the six months ended June 30, 2014 were as follows:

	Metals Segment			Plastics Segment		Total
Balance as of January 1, 2014
Goodwill	$	116,533		$	12,973	$	129,506
Accumulated impairment losses	(60,217		)	—		(60,217		)
Balance as of January 1, 2014	56,316			12,973		69,289
Impairment charge	(56,160		)	—		(56,160		)
Currency valuation	(156		)	—		(156		)
Balance as of June 30, 2014
Goodwill	116,377			12,973		129,350
Accumulated impairment losses	(116,377		)	—		(116,377		)
Balance as of June 30, 2014	$	—		$	12,973	$	12,973

Summary of the components of intangible assets

The following table summarizes the components of intangible assets:

	June 30, 2014				December 31, 2013
	Gross Carrying Amount		Accumulated Amortization		Gross Carrying Amount		Accumulated Amortization
Customer relationships	$	117,755	$	60,244	$	117,794	$	55,157
Non-compete agreements	3,888		3,735		3,888		3,569
Trade name	8,018		2,320		8,025		1,939
Developed technology	1,400		1,186		1,400		953
Total	$	131,061	$	67,485	$	131,107	$	61,618

Summary of the estimated annual amortization expense

The following is a summary of the estimated annual amortization expense for 2014 and each of the next 4 years:

2014	$	11,696
2015	10,930
2016	10,930
2017	8,907
2018	4,784